Location

Brunswick, ME

Start Date

1-1-1990 12:00 AM

Description

In non-destructive testing, it has been suggested that wavelength or frequency dependent Rayleigh wave scattering coefficients could provide a means of characterising surface defects. Only a few Rayleigh wave scattering problems have analytic solutions and most workers have resorted to numerical techniques [1]. In this paper we present details of a new model that can deal with general surface defect geometries. The scheme is used to model Rayleigh wave scattering from curved corners, steps and slots. The implications of the results for a Rayleigh wave based defect characterisation method are discussed briefly.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

9A

Chapter

Chapter 1: Fundamentals of Classical Techniques

Section

A: Elastic Wave Scattering and Flaw Sizing

Pages

77-84

DOI

10.1007/978-1-4684-5772-8_8

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

A General Model for Rayleigh Wave — Surface Feature Scattering Problems

Brunswick, ME

In non-destructive testing, it has been suggested that wavelength or frequency dependent Rayleigh wave scattering coefficients could provide a means of characterising surface defects. Only a few Rayleigh wave scattering problems have analytic solutions and most workers have resorted to numerical techniques [1]. In this paper we present details of a new model that can deal with general surface defect geometries. The scheme is used to model Rayleigh wave scattering from curved corners, steps and slots. The implications of the results for a Rayleigh wave based defect characterisation method are discussed briefly.